WHO Collaborating Centre for Infectious Disease Epidemiology and Control, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region, China.
Laboratory of Data Discovery for Health Limited, Hong Kong Science and Technology Park, New Territories, Hong Kong Special Administrative Region, China.
J Pediatric Infect Dis Soc. 2023 Nov 30;12(11):586-589. doi: 10.1093/jpids/piad083.
In March-June 2023, we conducted a test-negative study in 1671 children who were hospitalized with acute respiratory illness in Hong Kong. Two hundred and eighty-six children (17.2%) were tested positive for influenza virus including 188 with A(H1N1). We estimated influenza vaccine effectiveness against influenza-associated hospitalization as 69.6% (95% confidence interval: 49.3%, 81.7%).
2023 年 3 月至 6 月,我们在香港因急性呼吸道疾病住院的 1671 名儿童中开展了一项病例对照研究。286 名儿童(17.2%)检测出流感病毒阳性,其中 188 名检测出 A(H1N1)型。我们估计流感疫苗对与流感相关的住院的有效性为 69.6%(95%置信区间:49.3%,81.7%)。